#4B63BF#4B63BF

#4B63BF is a mid, vivid blue. Relative luminance 0.142; OKLCH L 52.9% C 0.146 H 269.8°. Best body text is #FFFFFF at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#4B63BF
RGB	rgb(75, 99, 191)
HSL	hsl(228, 48%, 52%)
HSV	hsv(228, 61%, 75%)
CMYK	cmyk(60.7%, 48.2%, 0%, 25.1%)
CIE-LAB	lab(44.49, 19.67, -51.17)
CIE-LCH	lch(44.49, 54.82, 291.03°)
OKLab	oklab(52.87% -0.0005 -0.1463)
OKLCH	oklch(52.87% 0.146 269.8)
XYZ	xyz(16.7643, 14.1797, 51.1336)
Luminance	0.1418 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B63BF #BFA74B

analogous

#4B9DBF #4B63BF #6D4BBF

triadic

#4B63BF #BF4B63 #63BF4B

tetradic

#4B63BF #BF4B9D #BFA74B #4BBF6D

square

#4B63BF #BF4B9D #BFA74B #4BBF6D

split-complementary

#4B63BF #BF6D4B #9DBF4B

monochromatic

#26346A #364A97 #4B63BF #788ACF #A5B1DF

Accessibility & contrast

On white

5.47

#4B63BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#4B63BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B63BF

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B63BF	#FFFFFF	#000000	##FFFFFF
##4B63BF	1.00	5.47	3.84	5.47
#FFFFFF	5.47	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#356FC2

Deuteranopia (green-blind)

#2064BD

Tritanopia (blue-blind)

#007888

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #4b63bf;
/* rgb */ color: rgb(75, 99, 191);
/* oklch */ color: oklch(52.9% 0.146 269.8);

Tailwind

colors: {
  custom: {
    50: '#888fd3',
    500: '#4b63bf',
    950: '#000000',
  },
}

SCSS

$custom: #4b63bf;
$custom-light: #888fd3;
$custom-dark: #000000;

JSON

{
  "hex": "#4b63bf",
  "rgb": {
    "r": 75,
    "g": 99,
    "b": 191
  },
  "hsl": {
    "h": 227.586,
    "s": 47.541,
    "l": 52.157
  },
  "oklch": {
    "l": 0.5287,
    "c": 0.14626,
    "h": 269.8
  },
  "luminance": 0.14181
}

Semantic roles & 50–950 ramp

primary

#4B63BF

secondary

#CCC29A

accent

#BB51D7

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C14

muted

#7D7D83

Preview Lab

Preview with #4B63BF

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →